Wide-angle projection lens and optical engine for a projection display device

Details for Australian Patent Application No. 2004297974 (hide)

Owner 3M Innovative Properties Company

Inventors Hughes, Patricia M.; Haushalter, William E.; Saxe, Steven G.; Lu, Kai Chang; Rodriguez, Ernesto M. Jr.

Agent Davies Collison Cave

Pub. Number AU-A-2004297974

PCT Pub. Number WO2005/057267

Priority 60/527,424 05.12.03 US; 60/584,692 01.07.04 US; 60/584,693 01.07.04 US; 60/556,612 26.03.04 US; 60/584,691 01.07.04 US

Filing date 3 December 2004

Wipo publication date 23 June 2005

International Classifications

G02B 13/04 (2006.01) Optical objectives specially designed for the purposes specified below - Reversed telephoto objectives

G02B 13/06 (2006.01) Optical objectives specially designed for the purposes specified below - Panoramic objectives

G02B 13/18 (2006.01) Optical objectives specially designed for the purposes specified below - with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

G03B 21/30 (2006.01) Projectors or projection-type viewers - adapted to collapse or fold, e.g. for portability

Event Publications

15 June 2006 PCT application entered the National Phase

  PCT publication WO2005/057267 Priority application(s): WO2005/057267

1 July 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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